How to Solve Minimum Number of Swaps to Make the String Balanced Problem
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Minimum Number of Swaps to Make the String Balanced
You are given a 0-indexed string s of even length n. The string consists of exactly n / 2 opening brackets '[' and n / 2 closing brackets ']'. A string is called balanced if and only if: It is the emp...
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Understanding the Minimum Number of Swaps to Make the String Balanced Problem
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Problem Statement
You are given a 0-indexed string s of even length n. The string consists of exactly n / 2 opening brackets '[' and n / 2 closing brackets ']'. A string is called balanced if and only if: It is the empty string, or It can be written as AB, where both A and B are balanced strings, or It can be written as [C], where C is a balanced string. You may swap the brackets at any two indices any number of times. Return the minimum number of swaps to make s balanced.
Minimum Number of Swaps to Make the String Balanced
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Examples
s = "][]["1You can make the string balanced by swapping index 0 with index 3. The resulting string is "[[]]".
s = "]]][[["2You can do the following to make the string balanced: - Swap index 0 with index 4. s = "[]][][". - Swap index 1 with index 5. s = "[[][]]". The resulting string is "[[][]]".
s = "[]"0The string is already balanced.
Constraints
n == s.length2 <= n <= 106n is even.s[i] is either '[' or ']'.The number of opening brackets '[' equals n / 2, and the number of closing brackets ']' equals n / 2.How Interview Coder Helps with Leetcode Problems
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